Crystalline porous frameworks based on double extension of metal–organic and covalent organic linkages

Nature Synthesis, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 14, 2025

Language: Английский

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Metal-organic framework (MOF)/C-dots and covalent organic framework (COF)/C-dots hybrid nanocomposites: Fabrications and applications in sensing, medical, environmental, and energy sectors

Advances in Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 328, P. 103178 - 103178

Published: May 8, 2024

Language: Английский

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Controlling amine monomers via UiO-66-NH2 defect sites to enhance forward osmosis membrane performance for lithium recovery

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152321 - 152321

Published: May 24, 2024

Language: Английский

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Covalent Metal–Organic Frameworks: Fusion of Covalent Organic Frameworks and Metal–Organic Frameworks

Accounts of Chemical Research, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

ConspectusMetal-organic frameworks (MOFs) and covalent organic (COFs), as emerging porous crystalline materials, have attracted remarkable attention in chemistry, physics, materials science. MOFs are constructed by metal clusters (or ions) linkers through coordination bonds, while COFs prepared pure building blocks via bonds. Because of the nature linkages, their own shortcomings. Typically, relatively weak bond strengths bonds lead to poor chemical stability MOFs, which limits practical implementations. On other hand, due strong exhibit rather higher under harsh conditions, compared MOFs. However, lack open sites restricts functionalization application. Therefore, it is hypothesized that "cream-skimming" would address these drawbacks produce a new class material, namely, metal-organic (CMOFs), with unprecedented structural complexity advanced functionality. The CMOFs reveal synthetic approach for preparation reticular materials. Specifically, ions reacted chelating ligands assemble complexes or functional reactive (e.g., -CHO, -NH2), can be further connected form networked structures dynamic chemistry (DCC). isolated complex cluster precursors show enhanced prevents decomposition rearrangements during self-assembly process CMOFs. Since topology preassembled nodes well-defined, structure readily predicted upon directed networking Unaccessible from unstable highly ion/clusters traditional conditions DCC approach. Moreover, synergize advantages COFs, containing active ensuring various interesting properties, linkages allow high even conditions. In past few years, our group has specifically focused on development general strategies coinage (Cu, Ag, Au)-based cyclic trinuclear units (CTUs) DCC. CTUs trigonal planar functionalized sites, such -NH2 react afford Notably, also features properties including metallophilic attraction, π-acidity/basicity, luminescence, redox activity catalytic activity, incorporated into we envision promising platforms not only novel but potential applications many research fields gas absorption/separation, sensing, full-color display, catalysis, energy, biological applications. this Account, summarize recent studies CMOFs, starting linkage topological design, transformation, morphological control, fields. We discuss future opportunities challenges rapidly developed field hope Account may promote scientific discoveries CMOF-based technologies future.

Language: Английский

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Advancing the integration of covalent-organic-framework with organic, inorganic, and polymeric materials for light-assisted green H2 generation: A review of emerging trends

Materials Science and Engineering R Reports, Journal Year: 2024, Volume and Issue: 161, P. 100858 - 100858

Published: Oct. 1, 2024

Language: Английский

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Recent developments and applications of solid membrane in chiral separation

Journal of Chromatography A, Journal Year: 2025, Volume and Issue: 1743, P. 465652 - 465652

Published: Jan. 2, 2025

Language: Английский

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Metalion-bonded two-dimensional framework non-Van der Waals sandwich heterojunctions for fast mass transfer in flexible in-plane micro-supercapacitors

eScience, Journal Year: 2025, Volume and Issue: unknown, P. 100404 - 100404

Published: April 1, 2025

Language: Английский

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Strategic design of magnetic ionic covalent organic frameworks incorporating amino acid ionic liquids for enhanced selectivity adsorption of benzimidazoles

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 495, P. 153534 - 153534

Published: June 27, 2024

Language: Английский

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Synthesis of MIL-101(Cr) metal-organic framework material and research photocatalytic capability of material for nitrate removal in water

Journal of Military Science and Technology, Journal Year: 2025, Volume and Issue: 101, P. 102 - 109

Published: Feb. 21, 2025

This paper presents the research results on some characteristics of metal-organic framework material MIL-101(Cr) and its ability to remove nitrate from aqueous environments based photocatalytic reactions. was synthesized using hydrothermal method in laboratory. Techniques such as FE-SEM, XRD, FT-IR, BET were employed, demonstrating that porous structure is highly developed, with a specific surface area up 3017 m²/g characteristic octahedral crystal size ranging approximately 100 300 nm. Experimental show under UV light conditions at wavelength 365 nm power 250 W, MOF can catalyze removal light, achieving maximum efficiency 99% after 180 minutes reaction. The MIL-101 significantly improved, reaches nearly 100% within reaction time 40 when formic acid (HCOOH 46 mM) used hole scavenger.

Language: Английский

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Phytochemical COF‐Modified Magnesium–Aluminum Hydrotalcite for Improving Flame Retardancy and Mechanical Properties of Epoxy Resins

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

ABSTRACT The high flammability and fume toxicity of epoxy resins (EP) represent the most significant impediments to their broader utilization. In this study, we synthesized a new multifunctional organic–inorganic hybrid flame retardant (PA‐COF@LDH) rich in phosphorus nitrogen through solvothermal intercalation COF into Mg/Al‐LDH subsequent modification with phytic acid (PA). incorporation 4 wt% PA‐COF@LDH resulted EP composites achieving V‐0 level UL‐94 an LOI 27.1%. PHRR, THR, TSP exhibited reductions 48.29%, 48.32%, 57.04% compared EP. retardancy index value reached 4.94, which is classified as “good.” This can be due collaboration effect coherent vapor phases. Furthermore, tensile strength break elongation EP/4wt%PA‐COF@LDH were enhanced by 18.1% 32.6%, respectively.

Language: Английский

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